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re PR target/16350 (gcc only understands little endian ARM systems)

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PR target/16350
* config.gcc: For arm*b-* define TARGET_BIG_ENDIAN_DEFAULT.
* config/arm/linux-elf.h (TARGET_ENDIAN_DEFAULT): Define based on TARGET_BIG_ENDIAN_DEFAULT.
   Use for MULTILIB_DEFAULTS.
   (TARGET_DEFAULT): Set according to TARGET_ENDIAN_DEFAULT.
   (LINUX_TARGET_LINK_SPEC): Pass -mlittle-endian on to the assembler.
* config/arm/linux-eabi.h (TARGET_LINKER_EMULATION): Set according to TARGET_BIG_ENDIAN_DEFAULT.
   (SUBTARGET_EXTRA_LINK_SPEC): Likewise.
* gcc/config/arm/bpabi.h (TARGET_DEFAULT_MASK): Set according to TARGET_BIG_ENDIAN_DEFAULT.

From-SVN: r129999
This commit is contained in:
Bernhard Fischer 2007-11-08 13:44:09 +00:00 committed by Nick Clifton
parent c4e2c79ee4
commit d3a9662cad
5 changed files with 65 additions and 17 deletions
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14
gcc/ChangeLog
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@ -1,3 +1,17 @@
2007-11-07 <aldot@gcc.gnu.org> Bernhard Fischer
PR target/16350
* config.gcc: For arm*b-* define TARGET_BIG_ENDIAN_DEFAULT.
* config/arm/linux-elf.h (TARGET_ENDIAN_DEFAULT): Define based on
TARGET_BIG_ENDIAN_DEFAULT. Use for MULTILIB_DEFAULTS.
(TARGET_DEFAULT): Set according to TARGET_ENDIAN_DEFAULT.
(LINUX_TARGET_LINK_SPEC): Pass -mlittle-endian on to the assembler.
* config/arm/linux-eabi.h (TARGET_LINKER_EMULATION): Set according
to TARGET_BIG_ENDIAN_DEFAULT.
(SUBTARGET_EXTRA_LINK_SPEC): Likewise.
* gcc/config/arm/bpabi.h (TARGET_DEFAULT_MASK): Set according
to TARGET_BIG_ENDIAN_DEFAULT.
2007-11-07 Diego Novillo <dnovillo@google.com>
* tree.h (struct tree_struct_field_tag): Move field

5
gcc/config.gcc
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@ -704,6 +704,11 @@ arm*-*-netbsd*)
;;
arm*-*-linux*) # ARM GNU/Linux with ELF
tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
case $target in
arm*b-*)
tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
;;
esac
tmake_file="${tmake_file} t-linux arm/t-arm"
case ${target} in
arm*-*-linux-*eabi)

10
gcc/config/arm/bpabi.h
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@ -32,9 +32,17 @@
#undef FPUTYPE_DEFAULT
#define FPUTYPE_DEFAULT FPUTYPE_VFP
/* TARGET_BIG_ENDIAN_DEFAULT is set in
config.gcc for big endian configurations. */
#if TARGET_BIG_ENDIAN_DEFAULT
#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
#else
#define TARGET_ENDIAN_DEFAULT 0
#endif
/* EABI targets should enable interworking by default. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT MASK_INTERWORK
#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)
/* The ARM BPABI functions return a boolean; they use no special
calling convention. */

11
gcc/config/arm/linux-eabi.h
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@ -46,8 +46,17 @@
#undef SUBTARGET_CPU_DEFAULT
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
/* TARGET_BIG_ENDIAN_DEFAULT is set in
config.gcc for big endian configurations. */
#undef TARGET_LINKER_EMULATION
#if TARGET_BIG_ENDIAN_DEFAULT
#define TARGET_LINKER_EMULATION "armelfb_linux_eabi"
#else
#define TARGET_LINKER_EMULATION "armelf_linux_eabi"
#endif
#undef SUBTARGET_EXTRA_LINK_SPEC
#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"
#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION
/* Use ld-linux.so.3 so that it will be possible to run "classic"
GNU/Linux binaries on an EABI system. */

18
gcc/config/arm/linux-elf.h
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@ -30,12 +30,24 @@
#undef TARGET_DEFAULT_FLOAT_ABI
#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
/* TARGET_BIG_ENDIAN_DEFAULT is set in
config.gcc for big endian configurations. */
#if TARGET_BIG_ENDIAN_DEFAULT
#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
#define TARGET_ENDIAN_OPTION "mbig-endian"
#define TARGET_LINKER_EMULATION "armelfb_linux"
#else
#define TARGET_ENDIAN_DEFAULT 0
#define TARGET_ENDIAN_OPTION "mlittle-endian"
#define TARGET_LINKER_EMULATION "armelf_linux"
#endif
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (0)
#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
#undef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \
@ -60,7 +72,7 @@
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
-X \
%{mbig-endian:-EB}" \
%{mbig-endian:-EB} %{mlittle-endian:-EL}" \
SUBTARGET_EXTRA_LINK_SPEC
#undef LINK_SPEC